首页>
外国专利>
High-resolution digital phase modulator for a fiber-optic signal transmission or measurement device
High-resolution digital phase modulator for a fiber-optic signal transmission or measurement device
展开▼
机译:用于光纤信号传输或测量设备的高分辨率数字相位调制器
展开▼
页面导航
摘要
著录项
相似文献
摘要
A digital phase modulator for a fiber-optic measurement device. A predetermined total number of electrodes of different lengths are arranged in parallel and on both sides of a light guidance path in or on an optical substrate. The electrodes are arranged in two or more triples along the light guidance path. In each case, two electrodes of successive length within a triple have the same length ratio with respect to one another. Such length ratio is chosen, in particular, to be ν=1.618. The electrode lengths of this triple are chosen such that the smallest step widths of the output value range of the phase modulator can be formed by subtraction between the values of at least two larger electrodes. This allows the resolution of the phase modulator to be increased from 9 bits to 11 bits without change in chip size.
展开▼